White Rose Hobbies HO Scale (1:87) AEI tags for freight cars and locomotives.
To install the tags break or cut them of the sprue and apply a very small amount of CA to attach them to your model. Be careful not to slide them so the glue is not seen on the model. On some models you make choose to make a bracket or mounting plate using styrene or other plastic to mount the tag on.
Add FRA Conspicuity Striping for even more realism for your rollingstock!
AEI tags began to be implemented in the early 1990’s to replace the failed ACI tags of the 1970’s. The tags use a radio frequency and are scanned at various points along the railroad, typically when a train enters or leaves a classification yard. The tags are programmed with the cars reporting mark (ie SHPX 458099) as well as which side of the car they are on. This allows the scanner to record the orientation of the car (ie A end or B end passed through first).